Polarity:
                                    
                                    
                                        Inverting
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Dimensions:
                                    
                                    
                                        24.33 x 6.35 x 4.57mm
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Minimum Operating Supply Voltage:
                                    
                                    
                                        4.75 V
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Logic Family:
                                    
                                    
                                        LS
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Width:
                                    
                                    
                                        6.35mm
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Input Level:
                                    
                                    
                                        TTL
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Maximum Low Level Output Current:
                                    
                                    
                                        48mA
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Maximum High Level Output Current:
                                    
                                    
                                        -15mA
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Maximum Propagation Delay Time @ Maximum CL:
                                    
                                    
                                        15 ns @ 5 V
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Number of Channels per Chip:
                                    
                                    
                                        8
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Package Type:
                                    
                                    
                                        PDIP
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Number of Elements per Chip:
                                    
                                    
                                        1
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Maximum Operating Temperature:
                                    
                                    
                                        +70 °C
                                    
                                                                                                        
                                                                                                                
                                    
                                                                                                                
                                    
                                        Output Level:
                                    
                                    
                                        TTL
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Length:
                                    
                                    
                                        24.33mm
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Pin Count:
                                    
                                    
                                        20
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Maximum Operating Supply Voltage:
                                    
                                    
                                        5.25 V
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Mounting Type:
                                    
                                    
                                        Through Hole
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Logic Function:
                                    
                                    
                                        Bus Transceiver
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Height:
                                    
                                    
                                        4.57mm
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Minimum Operating Temperature:
                                    
                                    
                                        0 °C
                                    
                                                                                                                                                                                    
                                    
                                                                                                                
                                    
                                        Propagation Delay Test Condition:
                                    
                                    
                                        45pF
                                    
                                                                                                                                                                    
                                    
                                                                                                                
                                    
                                        HTSUS:
                                    
                                    
                                        8542.39.0001
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        RoHS Status:
                                    
                                    
                                        ROHS3 Compliant
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Operating Temperature:
                                    
                                    
                                        0°C ~ 70°C (TA)
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Input Type:
                                    
                                    
                                        -
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Package / Case:
                                    
                                    
                                        20-DIP (0.300", 7.62mm)
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Number of Bits per Element:
                                    
                                    
                                        8
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        REACH Status:
                                    
                                    
                                        REACH Unaffected
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Output Type:
                                    
                                    
                                        3-State
                                    
                                                                                                                                                                                    
                                                                                                                
                                                                                                                
                                                                                                                
                                    
                                                                                                                
                                    
                                        Package:
                                    
                                    
                                        Tube
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Moisture Sensitivity Level (MSL):
                                    
                                    
                                        1  (Unlimited)
                                    
                                                                                                        
                                                                                                                
                                    
                                                                                                                
                                    
                                        standardLeadTime:
                                    
                                    
                                        6 Weeks
                                    
                                                                                                        
                                                                                                                
                                    
                                                                                                                
                                    
                                        Mounting Type:
                                    
                                    
                                        Through Hole
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Series:
                                    
                                    
                                        74LS
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Logic Type:
                                    
                                    
                                        Transceiver, Inverting
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Supplier Device Package:
                                    
                                    
                                        20-PDIP
                                    
                                                                                                        
                                                                                                                
                                    
                                                                                                                
                                    
                                        Voltage - Supply:
                                    
                                    
                                        4.75V ~ 5.25V
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Current - Output High, Low:
                                    
                                    
                                        15mA, 48mA
                                    
                                                                                                        
                                                                                                                
                                    
                                                                                                                
                                    
                                        Number of Elements:
                                    
                                    
                                        1
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        Base Product Number:
                                    
                                    
                                        74LS640
                                    
                                                                                                        
                                    
                                                                                                                
                                    
                                        ECCN:
                                    
                                    
                                        EAR99